Powell, J. (1995). The intermediate technology transfer unit: A handbook on operations. ITP.
Lua i Stíl Chicago (17ú heag.)Powell, John. The Intermediate Technology Transfer Unit: A Handbook on Operations. London: ITP, 1995.
Lua MLA (9ú heag.)Powell, John. The Intermediate Technology Transfer Unit: A Handbook on Operations. ITP, 1995.
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